The river pointed out by the old man cannot be found on any map. It's clearly another hidden asset of the Cloud Fort. Of course, it's their own territory; why would they reveal everything to everyone else? If someone were to sneak in, wouldn't that be the same as opening the door and letting people in freely?
And this river, although it doesn't have the crocodile swarm that Wufu and his group encountered earlier, they ran into a school of piranhas instead. Though they call them piranhas, it's more accurate to call them carnivorous fish; their sharp teeth can take a huge chunk of meat with just one bite, bones and all, and devour it in an instant.
Besides this, they also encountered two giant snakes engaged in a loving embrace. Although they weren't as big as boas, they still gave the group quite a scare.
After traveling for two or three days like this, the group finally reached the shore. After another two days, they saw familiar outskirts and let out a sigh of relief.
